{"id":"vidhyamitra:city-day:rishikesh:2016-02-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2016-02-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2016-02-18","date_display":"February 18, 2016 CE","panchanga":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2016,"month":2,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2457436.770833,"kali_year":5117,"ahargana":1868971.2708,"sun":{"sidereal_longitude":304.8016,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":67.9835,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":123.1819,"elapsed_within_tithi_degrees":3.1819},"nakshatra":{"number":6,"name":"Ārdrā","pada":1,"moon_longitude":67.9835,"elapsed_within_degrees":1.3168},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":12.7851},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"sky":{"method":"Sūrya-Siddhāntic Bhāskara-II 4-step iteration with atan2-based śīghra + varying peripheries + lunar latitude","engine_version":"3.0 (Pūrṇa — complete SS implementation)","tradition_sources":"Āryabhaṭīya 499 CE → SS Ch.1-5 Burgess 1860 → Siddhānta-Śiromaṇi Bhāskara II 1150 → Tantrasaṅgraha Nīlakaṇṭha 1501","input":{"year":2016,"month":2,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2457436.770833,"ahargana":1868971.2708,"kali_year":5117,"ayanamsa_lahiri":24.0783,"grahas":{"sun":{"sidereal_longitude":304.729701,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":68.96950100000004,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":false,"latitude":-4.4823},"mars":{"sidereal_longitude":208.69500100000005,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":281.052901,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":145.92860100000001,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":true},"venus":{"sidereal_longitude":276.7743009999999,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":231.02280100000007,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":152.908,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":332.908,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false}},"panchang":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2016,"month":2,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2457436.770833,"kali_year":5117,"ahargana":1868971.2708,"sun":{"sidereal_longitude":304.8016,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":67.9835,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":123.1819,"elapsed_within_tithi_degrees":3.1819},"nakshatra":{"number":6,"name":"Ārdrā","pada":1,"moon_longitude":67.9835,"elapsed_within_degrees":1.3168},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":12.7851},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.482,"elongation":123.182},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.482,"opposition_distance":56.818}},"eclipse_window_40days":[{"offset_days":20,"type":"solar","occurs":true,"moon_latitude":0.681,"elongation":1.816}]},"city":{"slug":"rishikesh","name":"Ṛṣikeśa","lat":30.0869,"lon":78.2676,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"rishikesh","name":"Ṛṣikeśa","lat":30.0869,"lon":78.2676,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha"},"sunriseLocal":"06:55","sunsetLocal":"18:07","solarNoonLocal":"12:31","dayLengthHours":11.197991341547226,"dayLengthDisplay":"11 Hours 11 Mins 53 Secs","nightLengthDisplay":"12 Hours 48 Mins 07 Secs","moonriseLocal":"13:47","moonsetLocal":"03:49","rahuKala":{"name":"Rāhu Kāla","start":"13:55","end":"15:19","startHours":13.922490187900074,"endHours":15.322239105593479,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:55","end":"08:19","startHours":6.923745599433059,"endHours":8.323494517126463,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:43","end":"11:07","startHours":9.723243434819866,"endHours":11.122992352513268,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:32","end":"09:55","startHours":9.536610245794078,"endHours":9.909876623845653,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:23","end":"07:41","startHours":7.390328571997527,"endHours":7.688941674438786,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:09","end":"12:54","startHours":12.149474892155096,"endHours":12.896007648258246,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:26","end":"06:11","startHours":5.430680087226762,"endHours":6.177212843329911,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:59","end":"06:55","startHours":5.990579654304123,"endHours":6.923745599433059,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:23","end":"15:08","startHours":14.389073160464543,"endHours":15.135605916567691,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:55","end":"18:19","startHours":17.921736940980285,"endHours":18.321736940980283,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:07","end":"18:35","startHours":18.121736940980284,"endHours":18.58831991354475,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:52","end":"19:37","startHours":17.871736940980284,"endHours":19.621736940980284,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:09","end":"00:54","startHours":24.149474892155098,"endHours":24.896007648258248,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:55","end":"08:19","startHours":6.923745599433059,"endHours":8.323494517126463,"quality":"auspicious"},{"name":"Roga","start":"08:19","end":"09:43","startHours":8.323494517126463,"endHours":9.723243434819866,"quality":"inauspicious"},{"name":"Udveg","start":"09:43","end":"11:07","startHours":9.723243434819866,"endHours":11.122992352513268,"quality":"inauspicious"},{"name":"Chala","start":"11:07","end":"12:31","startHours":11.122992352513268,"endHours":12.522741270206673,"quality":"neutral"},{"name":"Labha","start":"12:31","end":"13:55","startHours":12.522741270206673,"endHours":13.922490187900074,"quality":"auspicious"},{"name":"Amṛta","start":"13:55","end":"15:19","startHours":13.922490187900074,"endHours":15.322239105593479,"quality":"auspicious"},{"name":"Kāla","start":"15:19","end":"16:43","startHours":15.322239105593479,"endHours":16.721988023286883,"quality":"inauspicious"},{"name":"Śubha","start":"16:43","end":"18:07","startHours":16.721988023286883,"endHours":18.121736940980284,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:07","end":"19:43","startHours":18.121736940980284,"endHours":19.72198802328688,"quality":"auspicious"},{"name":"Kāla","start":"19:43","end":"21:19","startHours":19.72198802328688,"endHours":21.32223910559348,"quality":"inauspicious"},{"name":"Śubha","start":"21:19","end":"22:55","startHours":21.32223910559348,"endHours":22.922490187900074,"quality":"auspicious"},{"name":"Roga","start":"22:55","end":"00:31","startHours":22.922490187900074,"endHours":24.522741270206673,"quality":"inauspicious"},{"name":"Udveg","start":"00:31","end":"02:07","startHours":24.522741270206673,"endHours":26.12299235251327,"quality":"inauspicious"},{"name":"Chala","start":"02:07","end":"03:43","startHours":26.12299235251327,"endHours":27.723243434819864,"quality":"neutral"},{"name":"Labha","start":"03:43","end":"05:19","startHours":27.723243434819864,"endHours":29.323494517126463,"quality":"auspicious"},{"name":"Amṛta","start":"05:19","end":"06:55","startHours":29.323494517126463,"endHours":30.923745599433058,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:55","end":"07:55","startHours":6.923745599433059,"endHours":7.923745599433059,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:55","end":"08:55","startHours":7.923745599433059,"endHours":8.923745599433058,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:55","end":"09:55","startHours":8.923745599433058,"endHours":9.923745599433058,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:55","end":"10:55","startHours":9.923745599433058,"endHours":10.923745599433058,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:55","end":"11:55","startHours":10.923745599433058,"endHours":11.923745599433058,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:55","end":"12:55","startHours":11.923745599433058,"endHours":12.923745599433058,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:55","end":"13:55","startHours":12.923745599433058,"endHours":13.923745599433058,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:55","end":"14:55","startHours":13.923745599433058,"endHours":14.923745599433058,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:55","end":"15:55","startHours":14.923745599433058,"endHours":15.923745599433058,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:55","end":"16:55","startHours":15.923745599433058,"endHours":16.923745599433058,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:55","end":"17:55","startHours":16.923745599433058,"endHours":17.923745599433058,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:55","end":"18:55","startHours":17.923745599433058,"endHours":18.923745599433058,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:55","end":"19:55","startHours":18.923745599433058,"endHours":19.923745599433058,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:55","end":"20:55","startHours":19.923745599433058,"endHours":20.923745599433058,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:55","end":"21:55","startHours":20.923745599433058,"endHours":21.923745599433058,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:55","end":"22:55","startHours":21.923745599433058,"endHours":22.923745599433058,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:55","end":"23:55","startHours":22.923745599433058,"endHours":23.923745599433058,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:55","end":"00:55","startHours":23.923745599433058,"endHours":24.923745599433058,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:55","end":"01:55","startHours":24.923745599433058,"endHours":25.923745599433058,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:55","end":"02:55","startHours":25.923745599433058,"endHours":26.923745599433058,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:55","end":"03:55","startHours":26.923745599433058,"endHours":27.923745599433058,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:55","end":"04:55","startHours":27.923745599433058,"endHours":28.923745599433058,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:55","end":"05:55","startHours":28.923745599433058,"endHours":29.923745599433058,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:55","end":"06:55","startHours":29.923745599433058,"endHours":30.923745599433058,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Siṃha","Vṛścika","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Karka","Kanyā","Tulā","Makara","Kumbha"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South","rahuVasa":"North-West","anandadiYoga":{"name":"Mausala","quality":"Inauspicious"},"drikRitu":"Śiśira (Winter)","vedicRitu":"Śiśira (Winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-11.887379662598969,"eotMinutes":-14.434876212400278,"ayanamsa":24.0783}},"calendars":{"vikram_samvat":2073,"vikram_samvatsara":"Saumya","saka_samvat":1938,"saka_samvatsara":"Durmukhi","bengali_samvat":1423,"malayalam_era":1192,"nanakshahi_year":547,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Śukla Pakṣa","solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Śukla Ekādaśī · Vikram 2073 Saumya · Śaka 1938 Durmukhi"},"festivals":[{"id":"amalaki-ekadashi","name":"Āmalakī Ekādaśī","name_sanskrit":"आमलकी एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu (in Āmalakī tree)","significance":"Worship of Āmalakī (Indian gooseberry, sacred to Viṣṇu).","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Phālguna"},"precedence":4},{"id":"rangbhari-ekadashi","name":"Raṅgbhari Ekādaśī","name_sanskrit":"रङ्गभरी एकादशी","tradition":"Shaiva","associated_deity":"Śiva-Pārvatī","significance":"Kāśī tradition: Śiva brings Pārvatī home; rang-utsava begins.","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Phālguna"},"precedence":4},{"id":"ekadashi","name":"Ekādaśī","name_sanskrit":"एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Sacred to Bhagavān Viṣṇu; vrata for purification.","vrata":true,"detection":{"any_of":[{"tithi_number":11},{"tithi_number":26}]},"precedence":5},{"id":"kumbha-sankranti","name":"Kumbha Saṅkrānti","name_sanskrit":"कुम्भ सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Aquarius; Kumbha-māsa begins.","vrata":false,"detection":{"sun_rashi":"Kumbha"},"precedence":5}],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"rishikesh"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga February 18, 2016 CE · Ṛṣikeśa · Vidhyamitra","description":"February 18, 2016 CE for Ṛṣikeśa: Śukla Ekādaśī, sūryodaya 06:55, sūryāsta 18:07.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2016-02-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2016-02-18","sa":"https://sa.vidhyamitra.com/city/rishikesh/2016-02-18","hi":"https://hi.vidhyamitra.com/city/rishikesh/2016-02-18","x-default":"https://vidhyamitra.com/city/rishikesh/2016-02-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-16T04:39:48.549Z","verification":{"type":"multi-marker","confidence":"canonical"}},{"pillar":"Vidhyamitra-Tier2","pillar_version":"0.1.0","method":"Spherical astronomy + Lahiri ayanamsa + standard solar declination + EoT correction","retrieved_at":"2026-05-16T04:39:48.549Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-16T04:39:48.549Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}